Carl speiser



f -oo C. SPEISER.

LOOM FOR WEAVING.

APPLICATION FILED MAY l4. 19l9.

Patented Sept. 23, 1919.

Tm: COLUII IA PLANOGQAI'II cn., WASHINGTON n. c.

UNITED STATES P T NT OFFICE.

CARL srErsE'n, or' eniirnakmnnn, ma Baseswrrznanann.

M LOOM FOB, WEAVING.

Application filed. May, 14, 1919. Serial No. 295,970.

To all whom it may concern."

Be it known that I, 'GARLSPErsER, a citizen of the Swiss Republic, and resident of Gelterkinden, near Basel, Switzerland, have invented newand useful Improvements in Looms for Weaving, of which the following is a full, clear, and exact specification.

, In my U. S. patent application Ser. No. 224239, filed March 23, 1918, I have described a weaving loom wherein the Warp is obliquely upright and the heddles for form= ing the shed are in oblique position and have the form of rigid harness frames sliding in a guide frame and wherein the lay arranged below the heddles move up and down in an upwardly inclined direction.

The present invention relates to an improvement in or modification of that described in the said application and relates to the adaptation of this loom for the manufacture of velvet goods. The characteristic feature of the invention is that the pile warp is drawn over a draft roller in an obliquely downward direction directly into the harness frames and the knife for cutting the pile loops is arranged obliquely upward correspondingly with the direction of the warp.

The accompanying drawing illustrates the invention, Figure 1 being an elevation of a velvet ribbon loom having a treadle eccentric drive for the harness shafts, and Fig. 2 being a like view of a part drawn to an enlarged scale.

The obliquely upwardly directed warp 1 is arranged in the manner usual for velvet ribbon looms, in two layers for forming an upper and a lower shed. The heddlesfor forming the shed are arranged one above the other in oblique position and consist of rigid harness frames 3 rectilinearly guided in a frame 5 and having eyes for threading the warp threads. The rec1pro-' cating movement of the heddles is produced by a treadle eccentric drive which conslsts of the treadle levers 8 and treadle eccentrics 13. The construction and operation of such a drive is known. The lay 30, arranged below the harness frames 3 and pivoted at 31, is moved up and down in an inclined direction by an eccentric groove 32. The throw of the shuttle is below the harness frames at 34. All these separate parts have been described in the aforesaid application for an ordinary ribbon loom.

The pile warp a is drawn from the feed Specification of Letters Patent, i Sept, 191 9;

roller 1) by the draft-roller or transport-, roller "0. "It extends in an oblique downwardly directed path directly to the harness frames 3, bymea'ns of which it is 'laidin knownmanner in the shed and woven in. Guide rods d and e, which are mounted close to the draft roller 0, are for the purpose of insuring the contact of the pile warp with the roller c over 'a large part of the periphery thereof and thereby rendering certain the feed of the pile warp. The tension of the pile warp is produced by a tensioning rod 7 carried by a lever g pivoted on the rod 6. On the lever g is suspended a weight it above two electric contacts 2' which control an electric stop device (not shown) for automatically stopping the loom. Should the pile warp become loose from a failure to be woven in, the lever 9 yields and the weight it descends on to the contacts a, closing the circuit of the stop device so that the loom immediately comes to rest. Instead of this electric stop device a mechanical one may be used.

Like the ground warp 1 the pile warp a iigpided on a glass rod 3' before it enters a s ec The pile warp loops which have been woven in are cut in known manner by a reciprocating knife 70. Correspondingly with the direction of the threads, the knife is placed obliquely upward and this oblique position permits easy and certain movement of the knife; in other respects the cutting device presents no novelty.

What I claim is:

1. In a weaving loom, for the manufacture of velvet, an oblique warp race, rigid harness frames for shedding arranged in oblique position, a guide frame for slidably guiding said harness frames, a lay placed.

below said harness frames and arranged to move up and down in an inclined direction, a pile warp having substantially the same inclination as the said oblique warp race, a draft roller for supplying said pile warp in inclined position to said harness frames and a movable knife for cutting the pile loops arranged correspondingly with the oblique upward direction of the said warp race, substantially as described.

2. In a weaving loom for the manufacture of velvet, an oblique warp race, rigid harness frames for shedding arranged in oblique position, a guide frame for slidably guiding said harness frames, a lay placed below said harness frames and arranged to move up anddownin an inclined direction, a pile warphavingsubstantially the same inclination as the said oblique Warp race, a draft roller for supplying said pile warp in inclined position to said harness frames and a movable knife for cutting the pile loops arranged correspondingly with the ob lique upward direction of the warp race, a tensioning lever being provided for the pile warp 1n combination with an automatic Copies of this 'patent may be obtained for In witness whereof I have hereunto signed 15 my name this 1st day of April 1919, in the presence of two subscribing witnesses.

CARL SPEISER.

Witnesses Soorzr TAGGART, ARMAND BRnUN.

five cents each, by addressing the "Commissioner 0! Patents, Washington, D. G. 

